Wrench.



PATENTED APR. 17, 1906 No. 8l8,310.

G. H. STRIGKLAND.

WRENCH.

APPLIGATION FILED 00131 1905.

6112f. immmm "1/91 ines 2 STATES {PATENT OFFICE.

W'RE N CH I No. 818,310.

Specification of Letters Patent.

Patented April 17, 1-906.

Application filed October 31, 1905. Serial No. 285.326.

T at whom it may concern" Be it known that I, GEORGE H. STRICK- LAND, acitizen of the United States, residing at Warren, in the county ofTrumbull and State of Ohio, have invented new and useful Improvements inWrenches, of which the following is a specification.

This invention relates to wrenches, and

has for-its objects to produce a comparatively simple inexpensive device'of this character in which the movable jaw may be readily releasedfor free sliding movement upon the wrench-shank, one wherein the jaw maybe quickly locked in its adjusted positions, and one in which thejaw-adjusting nut may be rotated in the usual manner for obtaining aslight or accurate adjustment of the jaw.

A further object of the invention is to pro vide a device of thischaracter in which the sections of the jaw-adjusting nut may bepositioned relatively for total disengagement from the wrench-shank, onein which the nutsections may be disposed relatively for presenting acontinuous thread for cooperative engagement with the teeth on theshank, and one in which the parts of the nut will be normally lockedagainst relative movement.

With these and other objects in view the invention comprises the novelfeatures of construction and combination of parts more fully hereinafterdescribed.

In the accompanying drawings, Figure 1 is a side elevation, partly insection, of a wrench embodying the invention. Fig. 2 is a front edgeview of the same. Fig. 3 is a detail sectional view, the section beingtaken centrally through the operating-nut or sleeve. Fig. 4 is an endview of the sleeve with the parts thereof adjusted to present acontinuous thread. Fig. 5 is a similar view, partly in section, showingthe nut adjusted for disengagement with theshank. Fig. 6 is aperspective view of one portion or section of the nut. Fig. 7 is asimilar view of the other section of the nut. Fig. 8 is a detail view ofthe locking-plunger.

Referring to the drawings, 1 designates the wrench-shank, provided onits opposite edges with teeth or threads 2, properly pitched, as shown,and having at its forward end a fixed head or jaw 3 and at its rear enda reduced portion 4, formed to receive a handle 5, secured in place by anut 6, there being dis posed for movement upon and longitudinally of theshank 1 a movable jaw 7, these parts, except as hereinafter explained,being all of the usual or any appropriate construction and material.

The jaw 7 is provided with a rear extending portion or arm 8, having aninturned engaging portion or finger 9, seated in a'groove or recess 10,formed peripherally of a tubular operating-nut or member 11., adaptedfor movement longitudinally of the shank 1 and comprising a pair ofrelatively rotatable por tions or sections 12 and 13, havingcorrespondingly beveled or inclined meeting end faces 14, provided withshoulders or abutments 15 and 15 for a purpose which will presentlyappear, said sections being connected by means of engaging elements ordogs 16, projecting forwardly from the primary section 13 and havinginturned engaging portions or fingers 17, designed to seat in inclinedgrooves or recesses 18, formed peripherally upon the secondarysectionf12 and disposed parallel with the inclined face 14 of saidsection, whereby the section may freely and relatively rotate.

The section 12 of the sleeve or nut is .provided atdiametrically-opposed points with internal teeth or threads 19, adaptedfor engagement or non-engagement with the threads 2, while the section13 is similarly provided with diametrically-opposed internal threads orteeth 20, also designed for engagement with the teeth 2, and, further,for alinement or non-alinement with the threads 19, there being providedupon the jaw 7 a spring member or dog 21, adapted. for engagement with astop or lug 22 on the section 12 to limit reverse rotation of the latterfor disengaging the threads 19 with the teeth 2, while upon the section12 there is also provided a springactuated latching member or plunger23, designed to seat in suitable depressions or seats 24 24, formed inthe section 13 for locking the latter against movement relative tosection 12 and with the threads 19 and 22 in alinement or non-alinement.

In practice the sections 12 and 13 are normally adjusted with theirinternal threads in non-alinement and with the shoulders 15 in contactand the plunger 23 engaging the depression 24, under which conditionsthe threads 19 and 20 will present a continuous thread within the sleevefor cooperation with the teeth 2, and the nut or sleeve 11 may as awhole be freely rotated upon the shank 1 for moving the jaw 7 in theusual manner. If, however, a rapid adjustment of the jaw 7 is desired,the sleeve 11 as a whole is reversely rotated until the spring member 21engages lug 22, thus preventing further movement of section 12,whereupon rotation of section 13 may be continued until the shoulders 15contact and the plunger 23 engages the depression 24, whereupon threads19 and 20 are brought into relative alinement and to positions oppositethe smooth side faces of the shank 1, thus adapting the sleeve to bemoved freely longitudinally of the latter. After the desired adjustmentof the jaw 7 has been thus obtained the section 13 may be again rotatedforwardly until the latching member 23 enters the depression 24 in theface of section 13, thus locking the sections in their normal relationfor further adjustment of the jaw through rotation of the nut, asheretofore ex plained and as is usual in devices of this class.

From the foregoing it is apparent that I produce a comparatively simpleinexpensive device admirably adapted for the attainment of the ends inview, it being understood that minor changes in the details herein setforth may be resorted to without departing from the spirit of theinvention.

Having thus described my invention, what I claim is 1. In a device ofthe class described, a shank provided with teeth and having a fixed jaw,a movable jaw slidably disposed upon the shank, and a tubular operatingmember connected with the movable jaw, said operating member comprisinga pair of relatively movable sections having oppositely-disposed sets ofthreads adapted for engagement or non-engagement with the teeth.

2. In a device of the class described, a shank having teeth and carryinga pair of cooperating jaws, one of said jaws being movablelongitudinally of the shank, and a tubular operating member disposed formovement on the latter and operatively connected with the movable jaw,said cooperating member comprising a pair of sections having opposedsets of internal threads adapted for engagement or non-engagement withthe teeth, the sections being relatively rotatable to eflect alinementor non-alinement 01 either set of threads.

3. In a device of the class described, a

shank provided with teeth and carrying a pair of cooperating jaws, oneof said jaws being movable upon the shank, a tubular operating membermovable upon the shank and operatively engaged with the j aw, saidmember comprising a pair of sections having oppositely-disposed sets ofthreads adapted for engagement or non-engagement with the teeth, thesections being relatively rotatable to effectalinement or non-alinementof the sets of threads, and means for locking the sections againstrelative movement.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE H. STRICKLAND.

Witnesses:

H. PEOK, M. L. HYDE.

